Home/CVE/The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote
CVE

CVE-2016-0747

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

MEDIUM · CVSS 5.3 EPSS 0.20023
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

6
f5 nginx>= 0.6.18 and < 1.8.1
f5 nginx>= 1.9.0 and < 1.9.10
canonical ubuntu linuxall versions
debian linuxall versions
opensuse leapall versions
apple xcode< 13.0
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighNginx Core Dump
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Feb 2016 · 07:59 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

4
suse-csafopenSUSE-SU-2024:10044-1
rhsaRHSA-2016:1425Moderate
suse-csafSUSE-SU-2016:1232-1
usnUSN-2892-1
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing ListThird Party Advisory
http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/36Mailing ListThird Party Advisory
http://www.debian.org/security/2016/dsa-3473Third Party Advisory
http://www.securitytracker.com/id/1034869Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
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